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Extraterrestrial life is hypothetical life which may occur outside of Earth and which did not originate on Earth. Such life might range from simple prokaryotes to beings with civilizations far more advanced than humanity. The Drake equation speculates about the existence of intelligent life elsewhere in the universe. The science of extraterrestrial life in all its forms is known as astrobiology.
The search for extraterrestrial intelligence (SETI) is a collective term for scientific searches for intelligent extraterrestrial life, for example, monitoring electromagnetic radiation for signs of transmissions from civilizations on other planets.
Frank Donald Drake is an American astronomer and astrophysicist. He is involved in the search for extraterrestrial intelligence, including the founding of SETI, mounting the first observational attempts at detecting extraterrestrial communications in 1960 in Project Ozma, developing the Drake equation, and as the creator of the Arecibo Message, a digital encoding of an astronomical and biological description of the Earth and its lifeforms for transmission into the cosmos.
Popular science is an interpretation of science intended for a general audience. While science journalism focuses on recent scientific developments, popular science is more broad-ranging. It may be written by professional science journalists or by scientists themselves. It is presented in many forms, including books, film and television documentaries, magazine articles, and web pages.
Jill Cornell Tarter is an American astronomer best known for her work on the search for extraterrestrial intelligence (SETI). Tarter is the former director of the Center for SETI Research, holding the Bernard M. Oliver Chair for SETI at the SETI Institute. In 2002, Discover magazine recognized her as one of the 50 most important women in science.
The SETI Institute is a not-for-profit research organization whose mission is to explore, understand, and explain the origin and nature of life in the universe, and to apply the knowledge gained to inspire and guide present and future generations. It aims for discovery and for sharing knowledge as scientific ambassadors to the public, the press, and the government. SETI stands for the "search for extraterrestrial intelligence". The Institute consists of three primary centers: The Carl Sagan Center, devoted to the study of life in the universe, the Center for Education, focused on astronomy, astrobiology and space science for students and educators, and the Center for Public Outreach, producing "Big Picture Science," the Institute's general science radio show and podcast, and "SETI Talks" weekly colloquium series.
Seth Shostak is an American astronomer and author, and is currently the senior astronomer for the SETI Institute.
Xenoarchaeology, a branch of xenology dealing with extraterrestrial cultures, is a hypothetical form of archaeology that exists mainly in works of science fiction. The field is concerned with the study of material remains to reconstruct and interpret past life-ways of alien civilizations. Xenoarchaeology is not currently practiced by mainstream archaeologists due to the current lack of any material for the discipline to study.
"Bem" is the second episode of the second season of the American animated science fiction television series Star Trek, the 18th episode overall. It first aired in the NBC Saturday morning lineup on September 14, 1974, and was written by David Gerrold, who wrote the earlier episode "More Tribbles, More Troubles" and worked on several Original Series episodes. This episode marks the first time that Captain James T. Kirk's full name is given, revealing that the middle initial stood for Tiberius, after the Roman emperor.
"The Star" is a science fiction short story by English writer Arthur C. Clarke. It appeared in the science fiction magazine Infinity Science Fiction in 1955 and won the Hugo Award in 1956. It is collected in Clarke's book of short stories The Other Side of the Sky, and was later reprinted in the January 1965 issue of Short Story International as the lead-off story for that issue.
UFO Files is an American television series that was produced from 2004 to 2007 for The History Channel. The program covers the phenomena of unidentified flying and submerged objects, close encounters with alleged extraterrestrial life, and alleged military and government cover-up conspiracies.
Active SETI is the attempt to send messages to intelligent extraterrestrial life. Active SETI messages are usually sent in the form of radio signals. Physical messages like that of the Pioneer plaque may also be considered an active SETI message. Active SETI is also known as METI. The term METI was coined by Russian scientist Alexander Zaitsev, who denoted the clear-cut distinction between Active SETI and METI:
Ancient Aliens is an American television series that premiered on April 20, 2010, on the History channel. Produced by Prometheus Entertainment in a documentary style, the program presents hypotheses of ancient astronauts and proposes that historical texts, archaeology, and legends contain evidence of past human-extraterrestrial contact. The show has been widely criticized by historians, cosmologists, archaeologists and other scientific circles for presenting and promoting pseudoscience, pseudohistory and pseudoarchaeology.
David Morrison is an American astronomer, a senior scientist at the Solar System Exploration Research Virtual Institute, at NASA Ames Research Center in Mountain View, California. Morrison is the former director of the Carl Sagan Center for Study of Life in the Universe at the SETI Institute and of the NASA Lunar Science Institute. He is the past Director of Space at NASA Ames. Morrison is credited as the founder of the multi-disciplinary field of astrobiology. Morrison is best known for his work in risk assessment of near Earth objects such as asteroids and comets. Asteroid 2410 Morrison was named in his honor. Morrison is also known for his "Ask an Astrobiologist" series on NASA's website where he provides answers to questions submitted by the public. He has published 12 books and over 150 papers primarily on planetary science, astrobiology and near earth object.
SETIcon was a public convention organized by the SETI Institute and held twice in Santa Clara, California. It was an interdisciplinary conference, with talks focusing on a wide range of issues related to the search for extraterrestrial intelligence (SETI). The programs included panels with prominent scientists from NASA and SETI; talks by science fiction writers, artists, and actors; and panels to explore controversial issues and compare perspectives. The sessions were non-technical and meant to increase awareness, interest, and funding for the SETI Institute. The convention attracted professional scientists, educators, space enthusiasts, and science fiction fans. Astronomical tattoos were not uncommon among attendees.
Thomas Pierson was founder and CEO of the SETI Institute, a non-profit institute conducting research in Astrobiology.
Talking About Life: Conversations on Astrobiology is a non-fiction book edited by astronomer Chris Impey that consists of interviews with three dozen leading experts on the subject of astrobiology. The subject matter ranges from the nature and limits of life on Earth to the current search for exoplanets and the prospects of intelligent life in the universe. The book was published as a hardcover by Cambridge University Press in 2010.
The Nexus for Exoplanet System Science (NExSS) initiative is a National Aeronautics and Space Administration (NASA) virtual institute designed to foster interdisciplinary collaboration in the search for life on exoplanets. Led by the Ames Research Center, the NASA Exoplanet Science Institute, and the Goddard Institute for Space Studies, NExSS will help organize the search for life on exoplanets from participating research teams and acquire new knowledge about exoplanets and extrasolar planetary systems.
Andrew Patrick Vincent Siemion is an astrophysicist and director of the Berkeley SETI Research Center. His research interests include high energy time-variable celestial phenomena, astronomical instrumentation and the search for extraterrestrial intelligence (SETI). Andrew Siemion is the Principal Investigator for the Breakthrough Listen program.
METI International, simply known as METI, is a non-profit research organization that creates and transmits interstellar messages to search for extraterrestrial civilizations. In July 2015, the papers to form METI were filed by its founder and president, Douglas Vakoch. METI is headquartered in San Francisco, California.
References
- ↑ "TV Guide: Alien Encounters". TV Guide. Retrieved 9 June 2014.
- ↑ "IMDB: Alien Encounters". IMDB. Retrieved 9 June 2014.